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<?php |
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namespace Webparking\QueueEnsurer\Commands; |
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use Illuminate\Console\Command; |
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use Webparking\QueueEnsurer\Config\ConfigReader; |
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use Webparking\QueueEnsurer\PidsFile\ContentsManager; |
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use Webparking\QueueEnsurer\Processes\ProcessManager; |
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class EnsureProcesses extends Command |
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{ |
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protected $signature = 'queue:ensure-processes'; |
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protected $description = 'Ensure queue processes.'; |
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/** |
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* @var ContentsManager |
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*/ |
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private $contentsManager; |
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/** |
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* @var ProcessManager |
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*/ |
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private $processManager; |
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/** |
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* @var ConfigReader |
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*/ |
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private $configReader; |
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public function __construct(ContentsManager $contentsManager, ProcessManager $processManager, ConfigReader $configReader) |
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{ |
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$this->contentsManager = $contentsManager; |
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$this->processManager = $processManager; |
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$this->configReader = $configReader; |
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parent::__construct(); |
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} |
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public function handle(): void |
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{ |
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$this->removeStoppedProcessesFromFile(); |
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$this->killNoLongerConfiguredQueueProcesses(); |
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$this->killNoLongerNeededProcesses(); |
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$this->startNeededProcesses(); |
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} |
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private function removeStoppedProcessesFromFile(): void |
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{ |
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foreach ($this->contentsManager->getQueueNames() as $queueName) { |
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foreach ($this->contentsManager->getPids($queueName) as $processId) { |
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if (!$this->processManager->isStillRunning($processId)) { |
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$this->contentsManager->removePid($queueName, $processId); |
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} |
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} |
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} |
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} |
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private function killNoLongerConfiguredQueueProcesses(): void |
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{ |
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$queuesToKill = array_diff( |
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$this->contentsManager->getQueueNames(), |
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$this->configReader->getQueueNames() |
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); |
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foreach ($queuesToKill as $queueName) { |
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foreach ($this->contentsManager->getPids($queueName) as $processId) { |
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$this->processManager->killProcess($processId); |
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$this->contentsManager->removePid($queueName, $processId); |
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} |
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$this->contentsManager->removeQueue($queueName); |
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} |
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} |
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private function killNoLongerNeededProcesses(): void |
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{ |
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foreach ($this->configReader->getQueueNames() as $queueName) { |
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$configuredAmount = $this->configReader->getConfiguredAmount($queueName); |
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$amountOfProcesses = \count($this->contentsManager->getPids($queueName)); |
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if ($configuredAmount < $amountOfProcesses) { |
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foreach (\array_slice( |
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$this->contentsManager->getPids($queueName), |
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$configuredAmount - $amountOfProcesses |
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) as $processId) { |
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$this->processManager->killProcess($processId); |
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$this->contentsManager->removePid($queueName, $processId); |
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} |
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} |
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} |
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} |
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private function startNeededProcesses(): void |
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{ |
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foreach ($this->configReader->getQueueNames() as $queueName) { |
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$configuredAmount = $this->configReader->getConfiguredAmount($queueName); |
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$amountOfProcesses = \count($this->contentsManager->getPids($queueName)); |
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if ($configuredAmount > $amountOfProcesses) { |
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for ($i = 1; $i <= ($configuredAmount - $amountOfProcesses); ++$i) { |
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$this->contentsManager->addPid( |
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$queueName, |
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$this->processManager->startProcess($queueName) |
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); |
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} |
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} |
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} |
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} |
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} |
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webparking /
laravel-queue-ensurer
